link: http://www.medicationsense.com/fluoroquinolone.html 

Excerpt:

Levaquin and Cipro Reactions

In 2001, Dr. Jay S. Cohen published a ground-breaking article* on the severe and often disabling reactions some people sustained while taking Levaquin, Cipro, or another FQ antibiotic. Dr. Cohen says, “It is difficult to describe the severity of these reactions. They are devastating. Many of the people in my study were healthy before their reactions. Some were high intensity athletes. Suddenly they were disabled, in terrible pain, unable to work, walk, or sleep.” 
The 45 subjects in Dr. Cohen’s study reported the following side effects*.

Peripheral Nervous System

: Tingling, numbness, prickling, burning pain, pins/needles sensation, electrical or shooting pain, skin crawling, sensation, hyperesthesia, hypoesthesia, allodynia (sensitivity to touch), numbness, weakness, twitching, tremors, spasms.

Central Nervous System:

 

Dizziness, malaise, weakness, impaired coordination, nightmares, insomnia, headaches, agitation, anxiety, panic attacks, disorientation, impaired concentration or memory, confusion, depersonalization, hallucinations, psychoses.

Excerpt:

Lyme serology was positive for both IgG and IgM (ELISA, Enzygnost
Borreliosis , Siemens, Dade Behring, Germany, and blot,
Euroline WB , Euroimmun, Germany). A punch biopsy of a papule showed a dermal perifollicular ( fig. 2 ) – and occasionnally perineural – infiltrate of lymphocytes and plasma cells, consistent with a borrelial infection. Borrelia burgdorferi DNA was amplified from fresh tissue obtained from a skin biopsy performed on a peripilar papule, using a specific real-time PCR according to Mäkinen et al. [1] (culture not performed). The erythema resolved after a 3-week doxycycline treatment whereas arthralgia and dysesthesia persisted.